215829341

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2903}}^1$

素因数の和:2985

約数の個数: 32

約数和(自身を含む): 286218240

約数和(自身を除く): 70388899

約数列:

[1, 7, 13, 19, 43, 91, 133, 247, 301, 559, 817, 1729, 2903, 3913, 5719, 10621, 20321, 37739, 55157, 74347, 124829, 264173, 386099, 717041, 873803, 1622777, 2371751, 5019287, 11359439, 16602257, 30832763, 215829341]

約数ペア:

[(1, 215829341), (7, 30832763), (13, 16602257), (19, 11359439), (43, 5019287), (91, 2371751), (133, 1622777), (247, 873803), (301, 717041), (559, 386099), (817, 264173), (1729, 124829), (2903, 74347), (3913, 55157), (5719, 37739), (10621, 20321)]